Electrode for secondary batteries



(No Model.)

J. Y. BRADBUEY &E. J. STONE.

ELECTRODE FOR SECONDARY BATTERIES.

Patented Nov. 26, 1889.

UNITED STATES PATENT OFFICE.

JOSEPH Y. BR ADBURY AND FRANK J. STONE, OF LOlVELL, MASSAOHUSETTELECTRODE FOR SECONDARY BATTERIES.

SPECIFICATION forming part of Letters Patent No. 415,936, dated November26, 1889.

Application filed September 13, 1889. Serial No. 323,837. (No model.)

To all whom it may concern: in Fig. 5, the sections so formed being heldin Be it known that we,J OSEPH Y. BRADBURY the frame I) byinwardly-projecting ribs or and FRANK J. STONE, both citizens of theridges I)", as shown in Fig. 2,01 by rods I), such United States,residing at Lowell,in the county as are shown in Figs. 3 and at, whichrods may 5 of Middlesex and Commonwealth of Massabe of conducting orinsulating material, prefchuset-ts, have invented a certain new ande'ably the latter, in order that said rods may useful Improvement inElectrodes for Storbe repeatedly used, the rods passing throughage-Batterics,of which the followingisaspecithe sections from end to endthereof through fication. holes formed in said sections and in theframe. To Our invention relates to electrodes for stor- When thesections are to stand on end, as age orsecondary batteries;anditconsists, subshown in Figs. 3 and 4., it is thought best to stantially,in a suitable frame and ribbons or interpose washers b between thesuccessive strips of sheet-conducting material alternately layers orparallel parts of the conducting-ribbenteach over the other at aboutright angles bons, as shown in Fig. 4, to prevent the secr 5 andsupported in said frame. tions shortening by their own weight and In theaccompanying drawings, Figure 1 is bringing their adjacent surfaces intocontact, an isometric perspective view of a single cell and thuslessening the surface exposed to the of a storage-battery havingelectrodes emaction of the active material of the battery.

bodying ourimprovement; Fig. 2, an isometric In Fig. (3 two strips b'b bb are represented 20 view of a single elect-rode embodying our inasrunning in each direction and crossingthe vention; Fig. 3, an isometricview of a single folds of a strip of the other pair of stripsalelectrode embodying ourimprovement,sh'owternately. ingthe differentsections of the electrode sepa- By the constructions above described arated by bars of the frame; Fig. 4:, a section much larger surface ofthe conducting sup- 25 on the line 4 4 in Fig. 3 of a part of anelecport or electrode is exposed to the active matrode; Fig. 5, anisometric view of a part of a terial, and the electrodes, whether placedversection of an electrode such as is shown in tically on either edge orhorizontally, furnish Figs. 2 and Fig. 6 is similar to Fig. 5, exa largesurface and a large number of pockets cept that two pairs of ribbons areused, a ribfor the retention of the active material. 3o bon of each pairbeing bent alternately with If the frame I) is of non-conducting matetheother ribbon of the same pair over a ribrial, the different sections ofthe electrode bon of the other pair; Fig. 7, a section on the should beconnected to each otherbyconductline 7 7 in Fig. 2, showing the flangeson the ors of electricity, as by wires, or by bringing frame by means ofwhich the sections of the the ends of the strips which form the ditfer-3 5 electrodes are retained in the frame. ent sections of the sameelectrode in contact A, Fig. 1, is a cell or containing-vessel for witheach other. the electrodes B B and the active material. \Ve claim as ourinvention- The electrodes are connected in the usual man- 1. Anelectrode for secondary or storage bat- I ,ner, and are used in the sameWay as the electeries, consisting of a suitable frame and rib- 0 otrodes of other secondary or storage batteries bons or strips ofconducting and supporting and for the same purpose and with the samematerial alternately bent each over the other eflect. The electrodes Bconsist of suitable at about right angles and supported in said framesZ), preferably of conducting material, frame, as and for the purposespecified. as lead; but the body of the electrode consists 2. Thecombination, in an electrode for stor- 5 5 of a series of parallelsections, which may be age or secondary batteries, of a supportinghorizontal, as shown in Fig. 2, or vertical, as frame and two strips orsets of strips of conshown in Figs. 3 and 4.. ducting and supportingmaterial, each of said In each of the figures, except Figs. 6 and 7,strips being arranged to cross another of said each section of theelectrode consists of two strips and to be crossed by it alternately, asI00 50 strips or ribbons 1) each ribbon being bent and for the purposespecified.

across the other back and forth,as best shown 3. In an electrode forstorage-batteries, the

combination of the frame, strips or ribbons of specifieation,in thepresence of two attesting IO conduotingand supportingmaterial,eachbentwitnesses, this (5th day of September, A. l). across the other back andforth, as described, 1889.

Washers interposed between the successive s Y- r 5 layers or parallelparts of said strips or ribyji gggg hens, and rods passing through saidframe,

said Washers, and said ribbons, substantially Witnesses:

as described, for the purpose specified. JOHN I. COGGESHALL,

In Witness whereof We have signed this ALBERT M. MOORE.

